I try to avoid glass jars with metal (plastic lined lids) so I make my own jam. If you use jam sugar it is beyond easy.
Fruit
You can make jam out of just about anything, so go find yourself some plastic free fruit, or even carrots.
- You can buy it loose at a shop or supermarket.
- Buy it frozen from these suppliers
- Grow it
- Go to a Pick Your Own farm and pick your own. Check out this great farm finder website
- If you are based in Huddersfield, Bently Grange is close by.
Don’t forget to Take your own plastic free bags.
Sugar & Pectin
Bought as one in a paper bag from Tate & Lyle
For the traditional sweetness of jam, our 1:1 Jam Sugar, with its perfect balance of sugar and pectin, brings expert consistency to your homemade jam creations. The ratio of 1 kg of fruit to 1 kg of 1:1 Jam Sugar may be the most common way of making jam, but the result is uncommonly delicious.
Tate & Lyle
Fairtrade, For a traditional jam, Suitable for vegetarians and vegans, Kosher – KLBD
Our Fairtrade Promise
When you choose to buy Tate & Lyle Fairtrade cane sugar, you are making a difference to communities around the world. With your help, through the Fairtrade Premium, we support thousands of small-scale cane farmers in developing countries.
When you choose to buy Tate & Lyle Fairtrade cane sugar, you are making a difference to communities around the world. With your help, through the Fairtrade Premium, we support thousands of small-scale cane farmers in developing countries.
Make
Add equal weight of jam to fruit.
Boil till it went thick. 
Put it in a kilner jar or reuse a jam jar. Ta da!